package/Makefile: move source tar creation to a function

Split source tarball creation from rpm-pkg target
so it can be used from deb-pkg target as well. As
added bonus, we can now pretty print TAR the name of
tarball created in quiet mode

This patch prepares the groundwork for deb-pkg source
package adding bit.
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Michal Marek <mmarek@suse.com>

scripts/package/Makefile

@@ -24,27 +24,30 @@
 # Remove hyphens since they have special meaning in RPM filenames
 KERNELPATH := kernel-$(subst -,_,$(KERNELRELEASE))
 # Include only those top-level files that are needed by make, plus the GPL copy
-TAR_CONTENT := $(KBUILD_ALLDIRS) kernel.spec .config .scmversion Makefile \
+TAR_CONTENT := $(KBUILD_ALLDIRS) .config .scmversion Makefile \
                Kbuild Kconfig COPYING $(wildcard localversion*)
-TAR_CONTENT := $(addprefix $(KERNELPATH)/,$(TAR_CONTENT))
 MKSPEC     := $(srctree)/scripts/package/mkspec
 
+quiet_cmd_src_tar = TAR     $(2).tar.gz
+      cmd_src_tar = \
+if test "$(objtree)" != "$(srctree)"; then \
+	echo "Building source tarball is not possible outside the"; \
+	echo "kernel source tree. Don't set KBUILD_OUTPUT, or use the"; \
+	echo "binrpm-pkg or bindeb-pkg target instead."; \
+	false; \
+fi ; \
+$(srctree)/scripts/setlocalversion --save-scmversion; \
+ln -sf $(srctree) $(2); \
+tar -cz $(RCS_TAR_IGNORE) -f $(2).tar.gz \
+	$(addprefix $(2)/,$(TAR_CONTENT) $(3)); \
+rm -f $(2) $(objtree)/.scmversion
+
 # rpm-pkg
 # ---------------------------------------------------------------------------
 rpm-pkg rpm: FORCE
-	@if test "$(objtree)" != "$(srctree)"; then \
-		echo "Building source + binary RPM is not possible outside the"; \
-		echo "kernel source tree. Don't set KBUILD_OUTPUT, or use the"; \
-		echo "binrpm-pkg target instead."; \
-		false; \
-	fi
 	$(MAKE) clean
-	ln -sf $(srctree) $(KERNELPATH)
 	$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
-	$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --save-scmversion
-	tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(TAR_CONTENT)
-	rm $(KERNELPATH)
-	rm -f $(objtree)/.scmversion
+	$(call cmd,src_tar,$(KERNELPATH),kernel.spec)
 	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
 	mv -f $(objtree)/.tmp_version $(objtree)/.version
 	rpmbuild --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz